Chemical physics of decomposition of energetic materials. Problems and prospects

Смирнов, Л. П.

doi:10.1070/rc2004v073n11abeh000869

Cited by 19 publications

(4 citation statements)

References 69 publications

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“…However, during irradia- tion of composition S1, this effect is not observed: The concentration of the CO 2 formed almost coincides with its value calculated on the basis of the mass fraction of polyester urethane in the binder. It has been reliably found that some products of HMX decomposition can accelerate its thermal decomposition [18], and NO 2 released in the early stages of radiolysis can cause decomposition of the components of the active fuel binder [19]. The gaseous radiolysis products of cyclic nitramines were found to contain N 2 , N 2 O, NO, CO, CO 2 , H 2 CO, and H 2 (close results were obtained for photolysis [20]).…”

Section: Results and Analysismentioning

confidence: 67%

Gas release in energetic compositions with an active fuel binder on exposure to ionizing radiation

Milekhin¹,

Sadovnichii²,

Koptelov³

et al. 2008

Combust Explos Shock Waves

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Gas chromatography, manometry, and electron spin resonance spectroscopy were used to study the gas release due to the action of electron and gamma radiation on composite energetic compositions and their active fuel binder consisting of polyester urethane and plasticized nitrate esters. It is shown that, under irradiation, fillers such as ammonium perchlorate and aerosil promote decomposition of the active fuel binder and that cyclotetramethylene tetranitramine acts as an inert filler. The possible causes of the findings are discussed.

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Section: Results and Analysismentioning

confidence: 67%

Gas release in energetic compositions with an active fuel binder on exposure to ionizing radiation

Milekhin¹,

Sadovnichii²,

Koptelov³

et al. 2008

Combust Explos Shock Waves

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show abstract

“…For all classes of propellant, ageing, which is essentially the deterioration and change in the chemical, physical and mechanical properties, limits the time in which the materials can be safely stored or used [14]. The kinetics of the decomposition processes [15] and the effect of ageing in order to describe the chemical and mechanical shelf life of propellants have been extensively reported [13,[16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

A review on the effect of ageing on the ballistic properties of solid gun and rocket propellants

Pettifer,

Tod

2024

Propellants Explo Pyrotec

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This review covers the effect of ageing on solid gun and rocket propellants in terms of their ballistic properties. A brief overview of the types of methods, which can be used to determine such parameters, is provided and the literature is described in terms of broad motivation areas for the research. It has been demonstrated that understanding the effects and outputs of propellants, and how these might be affected by ageing, remains an important area of research in the field of energetic materials.

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“…Such test conditions are more consistent with HES and ECS heating conditions in the combustion regime than isothermal conditions. A change in the temperature regime can alter the limiting stages of decomposition and the ratio of the rates of various competing processes [3]. Therefore, some research centers possess test rigs where the heating rates of HES samples approach the rates inherent in combustion and reach 1500 K/sec [4].…”

Section: Introductionmentioning

confidence: 99%

“…Though AP properties have been already considered in more than 1000 original papers [3], there is no single opinion on the mechanism and kinetics of its thermal decomposition. Publications on the influence of radiation on physical and chemical characteristics of ammonium perchlorate are also contradictory, which can be attributed to different conditions of irradiation and storage of the samples (type and duration of the radiation effect, absorbed dose rate, temperature, composition, and pressure of the ambient medium, etc.…”

Section: Introductionmentioning

confidence: 99%

Specific features of thermal decomposition of ammonium perchlorate subjected to γ radiation

Koptelov

Milekhin

2007

Combust Explos Shock Waves

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Results of studying thermal decomposition of ammonium perchlorate (AP) samples in the original form and after irradiation by γ-quanta of 60 Co by methods of differential scanning calorimetry and dynamic thermogravimetry with heating rates b = 0.1-0.3 K/sec are described. Irradiation is performed in air at a temperature of 298 ± 2 K and a dose rate of ≈0.2 Gy/sec in the range of absorbed doses D = 0-150 kGy. Preliminary irradiation is demonstrated to lead to substantial transformations of the pattern of thermal decomposition of ammonium perchlorate in the dynamic regime of heating: the single-stage process of decomposition of non-irradiated samples proceeding at b = 0.107 K/sec in the temperature range of 625 to 743 K is replaced by a multistage process. At D = 150 kGy, exothermal transformations accompanied by noticeable losses of sample mass are observed starting from 473 K. Within experimental errors, the total thermal effect of AP decomposition is found to be independent of the absorbed dose and amounts to −1150 kJ/kg on the average.

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Chemical physics of decomposition of energetic materials. Problems and prospects

Cited by 19 publications

References 69 publications

Gas release in energetic compositions with an active fuel binder on exposure to ionizing radiation

Gas release in energetic compositions with an active fuel binder on exposure to ionizing radiation

A review on the effect of ageing on the ballistic properties of solid gun and rocket propellants

Specific features of thermal decomposition of ammonium perchlorate subjected to γ radiation

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